Apparatus for preparing wire-tapering cylinders.



PATPNTPD OCT. 2, 1906.

. H. FARRINGTON. APPARATUS FOR PREPARING WIRE TAPERING CYLINDERS.

APPLICATION FILED FEB-1. 1905.

3 SHEETS-SHEET 1.

u cm, WASHINGTON, n. c.

No. 832,304. PATENTED OCT. 2, 1906.

H. FARRINGTON. APPARATUS FOR PREPARING WIRE. TAPERING CYLINDERS.

APPLICATION FILED FEB. 1. 1905.

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a'wwllo N01. 832,304. I PATENTED OCT. 2, 1906.

H. FARRINGTON.

APPARATUS-FOR PREPARING WIRE TAPERING CYLINDERS.

APPLICATION FILED'I'EIB. 1. 1905.

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HARVEY FARRINGTON, OF YONKERS, NEW'YORK.

APPARATUS FOR PREPARING WlRE-TAPERING CYLINDERS.

Specification of Letters Patent.

Patented 0ct.'2, 1906.

Application filed February 1, 1905. Serial No. 243,629.

To all whom it may concern.-

Be it known that I, HARVEY FARRINGTON, a citizen of the United States, residing at Yonkers, in the county of Westchester and State of New York, have invented certain new and useful Improvements in Apparatus for Preparing Wire-Tap ering Oylinders,which improvements are fully set forth in the following specification.

This inventionrelates to improvements in apparatus for recessing blank cylinders to be used in the operation of tapering segments of wire, such apparatus being well designated apparatus for preparing wire-tapering cylinders.

The object of this invention is to provide an apparatus of the character above indicated which shall embody mechanism whereby superimposed blank cylinders preferably contacting at their circumferences may be revolved and a reamer or other appropriate tool fed between such cylinders at the line of contact andrelatively to the speed of revolution thereof and whereby the respective cylinders may be circumferentially recessed at a single operation, which shall be durable, efficient, and reliable in practical service, and which shall posse'ss certain well-defined advantages over prior analogous constructions.

The invention consists in the novel disposition and relative arrangement of the various cooperating parts thereof, in certain combinations, and in certain details of construction, all of which will be referred to more specifically hereinafter and set forth in the appendedclaims.

The invention is clearly illustrated in the accompanying drawings, wherein similar reference characters denote corresponding parts throughout the several views.

As to said drawings, Figure 1 is a side elevation of an apparatus for preparing wire tapering cylinders embodying my said 1m Fig' 2 is a plan view of same.-

provements. I Fig. 3 is a vertical section along the line 00 r of Fig. 2, and Figs. 4 and 5 are rear and front elevations of said apparatus, respectively, the motor availed of being removed from Fig. 4.

"In a general sense my present invention comprises mechanism for sustaining and revolving superimposed blank cylinders, preferably contacting at their circumferences, a tool-carrying head capable of presenting to the line of contact of and passing between said cylinders a reamer or other appropriate tool, means for rotating said head, and consequently the tool carried thereby, and means for feeding said head toward said cylinders, whereby the tool carried by said head may be moved to and beyond the line of contact of said cylinders and relatively to the-speed of revolution of the latter.

Having reference to the accompanying drawings, 2 2 denote opposing upright frame members bolted or otherwise secured to a suitable base and slotted from the top downwardly, the one to receive a bearing-slide 2" and the other to receive a corresponding bearing-slide 2'. There is ournaled to rotate in the members 2 2 at the lower extremity of the slots therein a shaft 3, on which is securely mounted a cylinder 3, and there is likewise journaled to rotate in the bearing-slides 2 2 a shaft 3", on whichis securely mounted a cylinder 3 and since the shaft 3 is adjustable by reason of the sliding relation of the slides 2 2 each with respect .to its cooperating frame member toward and away from the shaft 3 cylinder 3' may by its own gravity contact and have a rolling engagement with the cylinder 3, which relation of said cylinders is preferred and may be made more permanent by means of the setscrews 4 4, operating, respectively, to press the slides 2 2" downwardly.

While I have referred to the cylinders 3 3 as being in contact by preference or arranged so that the upper one rests upon and rolls in conjunction with the lower one, hence giving a line of contact between the two cylinders, it will be understood that the same might be arranged somewhat separated, as by increasing the diameter of each of the intermeshing gears 4 4 conjoined with the cylinders 3 3, respectively, and whereby said cylinders are caused to move as with a rolling relation between them upon a rotative movement beingimparted to either of the shafts 3 3; In this connection I purpose to rotate the shaft 3, and this may be accomplished by any appropriate driving mechanism, a worm-gear 5, fast on said shaft adjacent to one end of the cylinder 8 and operating in conjunction with a worm-threaded driving-shaft 5, journaled in hangers 5 5 and provided with a crank 6 at its outer end, constituting convenient and practicable hand-operative mechanism whereby said shaft 3 may be actuated.

Any appropriate means may be employed for securing each of the aforenamecl cylinders in place on its cooperating shaft, as a set-screw 6, Fig.2, passing through-one side of the hub of the cylinder and binding on the shaft on which such cylinder is mounted.

As to the construction thus far described, it will be observed that by removing the respective caps 6 6 shaft 3 accompanied by the slides 2 2, cylinder 3, and gear 4, may bedisplaced from the frame mem' bers 2 2 and likewise shaft 3, accompanied by the cylinder 3, gear 4", and any other parts carried thereby, may be displaced from said frame members, this being desirable when the cylinders 3 3 shall have been recesse'd, as hereinafter explained, to the end that said recessed cylinders may be removed, respectively, from the shafts 3 3 and fresh blank cylinders to be recessed replaced thereon,'said shafts, with the fresh cylinders ad justed thereon, being then rearranged with respect to the frame members 2 2, as hereinbefore indicated.

Bearing-slides corresponding to'2 2 may or may not be provided for the shaft 3, as found advisable in practice.

The gears l 1 at all times accompany, by preference, the cylinders to which they are respectively attached, to the end that said cylinders when recessed may be readjusted for a rolling or an approximate rolling relation in conjunction with other appropriate mechanism for wire-tapering purposes, a segment'or segments of Wire being accordingly fed between them at one or more of the recesses formed therein.

7 denotes a vertically adjustable toolhead, here shown as being adjustably held in position by opposing supports 7 7, rising from a secondary carriage 7, which is shiftable'to and fro parallel with the cylinders 3 3 and supported by a primary carriage 8, whic'h'i's shiftable toward and away from said cylinders and supported on a supplemental supporting frame consisting, in this instance,

of suitable upright sid'e-member'sduly braced and duly tied together, as by the cross-pieces '8 8, said supplemental supporting-frame being in turn supported in any appropriate manner, as by the general frame 8 of the apparatus. More specifically, the secondary carriage 7 has'a dovetail relation with the primary carriage 8, and the latter is provided With'downturned lips 9 9, at the opposite sides thereof, which serve to guide the carriage 8 in its movements toward and away head, and said tool-holder having in this instance and as is customary a many-sided known manner, as by means of a set-screw 10, Fig. 1.

More specifically with respect to'the toolhead 7 and the means availed of for adjustably supporting the same, said tool-head approXimates in form that of a linkand has-opposite side openings upwardly through which project, respectively, the supports 7 7, the latter being respectively threaded to receive the sustaining-nuts 10 10 beneath and which serve to primarilysustain said tool -'head' and the --retaining-nuts 11' 11 above and which serve to fasten firmly down to place on the nuts 10 10 said tool-head; It. Willthus be seen that by properly-manipu' latingithe nuts 10 10 1111 the tool head 7 may be readily adjusted to differentheights along the supports 7 7 and therefirmly held in position for service, this feature of the apparatus being desirable, to the end that the 7 tool 10 may be properly presen'ted'to the contact-line of cylindersof varyingdiameters tobe operatedup'on, as willbe clearly'und'en stood.

I prefer that the tool-holder 9, with the tool 10 carried thereby, be driven independently of the remainingoperative parts of the apparatus, and in this connection any appropriate medium for supplying "the driving power may be availed 'of, althoughfor this purpose'it is my intention to make useof an electric motor 11", the samebeing directly and firmly mounted onthe secondary carriage 7, and hence accompanying at all times said carriage7 and likewise the-carriage 8 in the movements thereof, respectively, all as will be apparent fro'm the ac companying drawings.

The driving-shaft 11 of the motor 11 is here shown as being worm-threaded forengaging' and driving theworm-gear 12, firmly mounted on the counter-shaft l2, journal'ed to rotate in the upright bearings 12"" 1.2, rising" from the secondary carriage 7. Counter-shaft 12 is opera'tivejly connectedwith the'tool' holde'r 9 through the medium of an endless sprocket-chain 13, running in a triangular course' and leading over a sprocket- Wheel'13, fast'onthe 'tool' hold'er9, atthe rear thereof, around a sprocket-idler 13", turning between upright bearings 13 13, rising as from the secondary carriage 7, Fig. '3, andreturning beneath and upwardly around a sprocket-wheel 14 firmly mourrted on the counter-shaft 1 2.

It will be understood that the transference of the power and motion'of the motor-shaft otherwisethan through the medium; of. the parts describedin the next preceding para. graph 1 as intervening between said motor,- shaft and saidtool-holder.-

Thesecondary carriage 7 may be adjustedby hand or. otherwiseto andfro laterally along the primary carriage8and held at any desired positionwithrespect to said carriage, as by means ofav set-screw, 14:, passing throughithe carriage 7 and. binding on the carriage 8, Fig. 3, and. to provide clearance fortthe lower ends of thesupports 7 7 carriage 8 may be provided with a slot 14", bridged at its under side by a depressed cap 14', held in place inany common and wellknown manner, as by means of thefastening bolts or screws 15 15.

Now, to the end that thetoollO may befed into. an operative relation with the cylinders 3 3, as by intersecting and. passingbeyond the contact-line thereof or working between them, and with aspeed relative to the speed of revolutionof, say, theshaft'3, and hence said cylinders, I purpose to extend. the shaft 3 outwardly beyond the framemember 2 for the reception of a driving spur-gear 15, which meshes with. a pinion 15, fast onthecounter-shaft 1'6 at the adjacent outer end there? of, said shaft 16 being journaledto rotate in upright bearings 16" 16, rising from the bed of. the general frame 8 and being provided at its innerend, orat a point suitably therealong with a bevel-gear 16, which meshes with a similar bevel-gear 17, fast on the adjacent end of the carriage-actuatingshaft 17 the latter being suitably journaled for a; rotative action, as in the upright bearings17 17 ",rising, respectively, from the cross-piece 8 andthebed. of the. general frame8 and beingworm-threaded and extended. through acorrespondingly worm-threaded lug 18, de-

ending from the primary carriage 8. Hence it will be seen that vtheWorm-threaded shaft 17 serves to directly-actuatethecarriage 8 and control thesame with theparts thereon for ashiftingactiontoward. and, away from the cylinders 3 3 upon, say, shaft 3, and accordingly said cylinders, being duly rotated, and. through the medium of. the .intermediate parts just described, such shifting action. of

the carriage8, with theparts thereon, being accordingly accomplished at aspeed relative to thespeed of revolution-of the shaft 3, and hence thecylinders 3 3'.

While I have described specific partsconstituting mechanism formactuatingand controlling the primary carriage 8 and the parts mounted thereon, it will be understood that this mechanism may varywidely inacharacter and constituent elements;

Again referring to the connections between the motor-shaft 11 and the tool-holder 9", it will be observed that the sprocket-idler 13" turns on an axle 18, which is adjustably arranged in vertical slots formed, respectively, in the bearings 13 13, that. are formedinthe bearing 13, being clearly indicated in Fig. 4, and. denoted by the reference character 18" andthereof the one formed in. the bearing 13" being aduplicate. The axle 18 may approximate a headed bolt suitably threaded toreceive afastening-nut 18'. This construction permits theendless chain.

13 to be kept serviceably taut under varying adjustments of. the tool-head 7, as will, be readily understood,

In operation; the parts being assembled. substantially as indicated in the several views of. the drawings, withv the carriage 8 adjusted to thelposition indicated,,say, in Fig. 3, and blank. cylinders occupying the. shafts 3 3", respectively, motor 11 is set in motion, thereby causing the tool-holder 9, with the tool 10 carried thereby, to rotate, whereupon the operator by properly turning crank 6 revolves shaft 3, with thecylinder 3= thereon, through the medium of. the WOI'IIL, 5 and worm-gear 5, and consequently and relativelyrevolves shaft 3, with the cylinder 3 thereon, through'the medium of thespur-v gears 1 4, such revolution, of the shaft 3v resulting, through themedium of the spurgear 15, carriage-actuating shaft 17, andthe ears, pinion, and counter-shaft intermeiate thereof, in a direct-feed motion bein I imparted to the carriage 8 and at a speed. relative to the speed ofrevolutionof the rela tively moving cylinders 3'13 or the shafts carrying the same, respectively, and a con,- tinuation of this operationbrings the tapered tool 10 (the head 9 being-properly adjusted to this end) gradually between the contacting or. nearly contacting cylinders fona rece'ssing or cutting action simultaneously on the two. cylinders, with thetresult that acirc-umferential recess, as 19, is formed in one ofsaidcylinders, while thereis alsoiformedinjthe other cylinder acorresponding recess 19, thesaidr recesses each graduallyand uniformly tapering in width, varying correspondingly. in depth, as clearly shown in the drawings, and. beingboth produced at one and thesame op eration. For-correspondingly forming a, series of recesses such as above referred to along vthe respective superimposed cylinders the supplemental carriage 7 is shifted to difierent positions-along, and secured to the primary carriage 8, and the foregoing opera,- tion is repeated in each instance. A ain, neig'hboringrecesses eachvaryin in area' om its .neighborror neighbors, as in icated in the drawin s, may be formed along the. respective cy inders aforenamed. by replacin the tool .10. with one of aproper taperfor orm-. ingeach of. such. recesses. A reverse movement may be imparted to the carriage 8 by reversely turning-crank 6, as will be clearly understood, or other well-known means to this end may be availed of.

It will be observed that the tool 10 performs when rotating and urged to its work a cutting or recessing function at the opposite sides thereof on the cylinders 3 3 and that being tapered, and hence gradually increasing its cutting or recessing capacity proportionately to the speed of revolution of the cylinders, the resultant recess formed in either of said cylinders varies accordingly in depth and width, and constitutes an exact counterpart of the recess formed simultaneously therewith in the other cylinder, the parts naturally being properly adjusted to this end. Further, since any transverse surface line of either of the recesses thus formed constitutes a semicircle upon said cylinders being properly adjusted, say, in such relation each to the other that the deepest ends of their registering recesses are brought into a uniform opposite relation, a circular opening, as 20, Fig. 5, is formed between said cylinders, which opening upon the cylinders being revolved in the proper direction is caused to gradually and uniformly diminish in diameter. Hence said cylinders having been relatively adjusted as last specified it will be seen that a segment of wire properly fed between them atthe registering recesses therein and when revolved as last stated will emerge therefrom at the opposite side thereof, tapered or shaped according to the variations in the opening 20 which shall have been effected by the relative action of the cylinders aforenamed, as stated, and in the accomplishment of this purpose the mechanism intermediate of the shaft 3 and the carriage 8 may be disconnected or said cylinders when duly recessed may be removed from my present apparatus and replaced in conjunction with another apparatus capable of receiving and sustaining the same for cooperation as herein described.

Naturally the foregoing wire tapering or shaping effect may be widely varied where the cylinders are provided with a series of registering recesses forming, respectively, openings 20, capable of being correspondingly varied in diameter, as herein set forth. It will be seen that my improved apparatus for preparing wire-tapering cylinders is particularly well adapted for the purposes for which it is intended and, further, that the same may be modified to some considerable extent without departing from the spirit and principle of my invention.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

1 An apparatus of the class described comprising upright frame members, cylinder-sustaining shafts j ournaled in said frame members one 'above the other, a gear-wheel secured to each of said shafts and adapted to intermesh, whereby said shafts will be driven at the same relative speed, means for adjusting said shafts toward or from each other, a primary carriage, means actuated through the cylinder-sustaining shafts for moving said carriage toward and from the said shafts, a secondary carriage mounted on the primary carriage and adapted to move thereon parallel with the cylinder-shafts, a tool-holder carried by said secondary carriage and a motor mounted-on said secondary carriage and connected to the tool-holder to rotate the same.

2. An apparatus of the class described comprising upright frame members, cylinder-sustaining shafts journaled in said frame members one above the other, a gear-wheel se-- cured to each of said shafts and adapted to intermesh, whereby said shafts will be driven at the same relative speed, means for adjusting said shafts toward or from each other, a primary carriage, means actuated through the cylinder-sustaining shafts for moving said carriage toward and from the said shafts, a secondary carriage mounted on the primary carriage and adatped to move thereon parallel with the cylinder-shafts, a tool-holder carried by said secondary carriage, a motor mounted on said secondary carriage and connected to the tool-holder to rotate the same, and means for vertically adjusting the toolholder without disconnecting it from its motor.

3. An apparatus of the class described comprising upright frame members, cylinder-sustaining shafts journaled in said frame members one above the other, a gear-Wheel secured to each of said shafts and adapted to intermesh, whereby said shafts will be driven at the same relative speed, means for adjusting said shafts toward and from each other, a primary carriage, means actuated through the cylinder-sustaining shafts for moving said carriage toward and from the said shafts, a secondary carriage mounted on the primary carriage and adapted to move thereon paral lel with the cylinder-shaft, a tool-holder c ar-' ried by said secondary carriage and a motor mounted on said secondary carriage, flexible driving means connecting said motor to the tool-holder, whereby the tool-holder may be vertically adjusted without disconnecting it from the motor, and means for vertically adjusting the tool-holder without disconnecting it from its motor.

HARVEY FARRINGTON.

Witnesses:

W. H. RUBY, F. B. WRIGHT. 

